The garage of Mike MacNeill’s home on Prospect Avenue in Port Washington exploded at about 9 p.m., just seconds after cops arrived in response to a 911 call of a domestic disturbance and were walking down the driveway with MacNeill’s wife and 2-year-old daughter.

The couple was in the midst of a divorce, according to TV station CBS 2 New York.

The 911 call had been placed from inside the home and when police got there, 39-year-old ­Angela MacNeill and her daughter said they smelled a strong gasoline odor.

The ensuing explosion set the two-story house ablaze as well as two neighboring homes — and the blast shook restaurants more than a mile away.

“We heard the blast,” said neighbor Lynda McDougald. “It shook our apartment. We were rocked out of our beds.”

Residents of Prospect Avenue screamed to their neighbors to flee and seek safety. “It was a raging wall of fire,” said Richard Baiocco, who lives nearby. “It must have been 50 or 60 feet high.”

A body was found amid the debris, and Mike MacNeill, who owns the property that went up in flames, was still “unaccounted for” as of Wednesday afternoon.

A photo posted on Mike MacNeill’s page in December 2013.

The fast-paced blaze and loud explosion led officials to blame a “liquid accelerant” for the blast.